Eatontown Water Hardness & Quality Report (2026)
Water Hardness
8.9 grains per gallon
Source
reservoir
pH Level
8.1
neutral = 7.0
Lead
0.007 mg/L
✓ Below action level
TDS
368.9 mg/L
Est. Daily Cost
$0.40
energy & soap waste
Source: USGS Water Quality Portal · Updated 2026
0–60
mg/L
Soft
61–120
mg/L
Moderately Hard
121–180
mg/L
Hard
180+
mg/L
Very Hard
Appliance Damage Report
In Eatontown, your appliances are currently losing 20% efficiency due to mineral buildup.
| Appliance | In Eatontown | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 4.6 yrs | 8.5 yrs | -46% |
| Washing Machine | 8 yrs | 12 yrs | -33% |
| Water Heater | 9.5 yrs | 15 yrs | -37% |
Regional Water Comparison
How Eatontown compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Eatontown, New Jersey | 151.5 mg/L | 11.4 ppt | 🟠 Hard | reservoir |
| Tinton Falls, New Jersey | 164 mg/L | 12.1 ppt | 🟠 Hard | reservoir |
| Red Bank, New Jersey | 181.5 mg/L | 13.1 ppt | 🔴 Very Hard | reservoir |
| Long Branch, New Jersey | 184 mg/L | 13.3 ppt | 🔴 Very Hard | reservoir |
| Asbury Park, New Jersey | 173.5 mg/L | 12.7 ppt | 🟠 Hard | reservoir |
National Benchmark
How Eatontown compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Eatontown | 151.5 mg/L | 🟠 Moderate |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Eatontown's Water Unique?
Local geology and source profile
Eatontown, New Jersey, in Monmouth County — a Monmouth County borough adjacent to Long Branch and Red Bank on the north-central New Jersey coast — receives its water from the New Jersey American Water, drawing from the Manasquan Reservoir (Monmouth County) through the north-central New Jersey coast distribution.
The hard 151.5 mg/L hardness and TDS of 368.9 mg/L reflect the Monmouth County Manasquan supply's hard calcareous character — the Cretaceous Raritan Formation slightly calcareous and Pleistocene Atlantic Coastal Plain sand produce hard water with elevated TDS from the coastal plain position (compare Lumberton NJ: 82.5/155 in Burlington County softer; Cedar Grove NJ: 87/167 in Essex County softer; Eatontown harder from the Monmouth County coastal Cretaceous draw). The Manasquan Reservoir at Monmouth County — Cretaceous Raritan Formation (slightly calcareous — primary hardness contributor), Pleistocene Atlantic Coastal Plain sand (insoluble — dilutant), and Quaternary coastal alluvium (calcareous — TDS contributor).
At 151.5 mg/L with TDS 369, Eatontown's water is hard — scale builds in kettles and appliances over months, dishwashers benefit from rinse aid, and faucet aerators need periodic cleaning. Quarterly descaling is appropriate. The PFAS level of 11.4 ppt is very high — a certified drinking water filter with PFAS removal is strongly recommended — the Monmouth County north-central New Jersey military (Fort Monmouth) and industrial corridor contribute to Eatontown's very elevated PFAS readings.
Geology & Source: Eatontown in Monmouth County is served by New Jersey American Water drawing from Manasquan Reservoir — the Manasquan watershed drains Cretaceous Raritan Formation (slightly calcareous) and Pleistocene Atlantic Coastal Plain sand (insoluble) — NJ Monmouth County Manasquan Cretaceous coastal plain supply produces hard water at 151.5 mg/L with TDS 368.9 mg/L.